This article explores the evolution of growth patterns among mammals in general and primates in particular to better understand the shared and special features of human growth. Special attention is given to several competing hypotheses concerning the adaptive value of the juvenile stage to the life history of the social mammals. The unification hypothesis claims that all growing organis...

"Although the determinants of teenager participation in the labour market have been studied previously (both in the United States and the United Kingdom), there remain a number of neglected questions. We address some of these in this paper, basing our analysis on data taken from the UK National Child Development Study. We first examine how teenagers divide their time between working and studyin...

Tomato  (L.ycopersicon esculentum  Mill.) cv. Rio Grande  seedlings were nutritionally conditioned with solutions complete fertilizer N(60% NO3+40% NH4)-P-K (20-20-20) , N(30%NO3+70% NH4)-P-K (15-5-30) , the first two week   N(60% NO3+40% NH4)-P-K (20-20-20) and later two week  N(30%NO3+70% NH4)-P-K...

Let oK be the integral closure of Zp in a finite field extension K of Qp, and let F be a one-dimensional full formal group defined over oK . We study certain finite subgroups C of F and prove a conjecture of Jonathan Lubin concerning the absolute endomorphism ring of the quotient F/C when F has height 2. We also investigate ways in which this result can be generalized to p-adic formal groups of...

abstract in order to study salt stress, calcium and potassium effects and type of application on sorghum plant, a field experiment was arranged in randomized complete block in split plot design at the research field of center of excellence for special crops, ferdowsi university of mashhad at 2008. experimental treatments were included two levels of salinity (5 and 10 ds.m-1) as main plots and f...

Let K be a number field and ` a positive integer. The main theorem of [3] gives an upper bound for the order of the `-torsion subgroup in the ideal class group ClK of K under the Generalized Riemann Hypothesis, which can be made unconditional in certain special cases (e.g. when K/Q is a quadratic extension and ` = 3.) The main idea is to show that there are many ideal classes which are not `-to...

We consider the height of random k-trees and k-Apollonian networks. These random graphs are not really trees, but instead have a tree-like structure. The height will be the maximum distance of a vertex from the root. We show that w.h.p. the height of random k-trees and k-Apollonian networks is asymptotic to c log t, where t is the number of vertices, and c = c(k) is given as the solution to a t...

We have shown that the n–th Morava K –theory K∗(X) for a CW–spectrum X with action of Morava stabilizer group Gn can be recovered from the system of some height–(n + 1) cohomology groups E∗(Z) with Gn+1 –action indexed by finite subspectra Z . In this note we reformulate and extend the above result. We construct a symmetric monoidal functor F from the category of E∨ ∗ (E)–precomodules to the ca...